great! a quick one then: how would you then do to have a
> marker symbols where some part of the polygon is not
> attached to the rest (a vertical line plus an ellipse for
> example). I could do that using two different markers and
> plotting them one after the other, but is there a simpler
> way? thanks Eric
Just use the brute force approach for now, and when I get some time
I'll look into generalizing this for general paths.